docs: def read_file(path):
      """
      Reads a ctm file.
  
      Args:
          path (str): Path to the file
  
      Returns:
          (dict): Dictionary with entries.
  
      Example::
  
          >>> read_file('/path/to/file.txt')
          {
              'wave-ab': [
                  ['1', 0.00, 0.07, 'HI', 1],
                  ['1', 0.09, 0.08, 'AH', 1]
              ],
              'wave-xy': [
                  ['1', 0.00, 0.07, 'HI', 1],
                  ['1', 0.09, 0.08, 'AH', 1]
              ]
          }
      """
      gen = textfile.read_separated_lines_generator(path, max_columns=6,
                                                    ignore_lines_starting_with=[';;'])
  
      utterances = collections.defaultdict(list)
  
      for record in gen:
          values = record[1:len(record)]
  
          for i in range(len(values)):
              if i == 1 or i == 2 or i == 4:
                  values[i] = float(values[i])
  
          utterances[record[0]].append(values)
  
      return utterances